The magnetic design of this phone/tablet cooler features a magnetic base made of high thermal conductivity steel and strong adhesive, allowing for long-term use after a single installation. The cooler automatically absorbs heat when close to the device and will not fall off during use. Additionally, thanks to its large heat dissipation surface, its cooling effect is superior to similar products on the market. With powerful 20W operation, this iPad cooler case breaks through the power limitations of traditional phone coolers; the ultra-thin laptop cooler reaches a maximum power of 20W, improving cooling performance by 60%. A large hydraulic fan with hydraulic airflow reduction significantly increases exhaust volume, ensuring stable rotation and low noise; maximum noise can be controlled below 55 decibels. (Maximum noise is related to power; higher power results in higher noise. Changing the charging adapter can change the current and noise level, such as 5V1A, 5V2A, 9V2A, 9V3A adapters.) Temperature display: The phone cooling fan has a real-time temperature display. This phone cooler is also compatible with the Surface Pro tablet cooling fan, designed for enthusiasts. You will feel and see the performance improvement. RGB lighting: Features a built-in high-performance mobile phone cooling fan and heatsink, suitable for tablets, offering fast operation and low noise. It has RGB light effects. However, the lights cannot be turned off unless the power is turned off. High compatibility: This tablet cooler perfectly supports tablets/iPads (up to 13 inches), all phones wider than 3.9 inches, and laptops (up to 13 inches recommended). Examples include the 12.9-inch iPad Pro and 9-inch tablets.